Transmission hoist



1948. N. o. NELSON TRANSMISSION HOIST Filed April 15, 1946 m w m H Um.II. m 0 I E z z N 9 I/ w o. E 7 a w M M 9 mm W 4 m Patented Jan. 6,1948 UNITED STATE-S PATENT OFFICE TRANSMISSION ifors'r Nels 0. Nelson,San Juan, Tex. Application April 15, 1946, Serial No. 662,381

1 Claim. (Cl. 254-4391) My invention relates to improvements intransmission hoists for removing transmissions from automobiles and thelike.

H he invention is designed with the primary obieet in view of providinga simple form of hoist for lifting such transmissions through the floorof automobiles and removing the same out of the front door, and which isespecially adapted for easy operation by one man, is safe, inexpensiveto manufacture, and will not readily get out of order.

.To the accomplishment of the above, and subordinate objects presentlyappearing, a preferred embodiment of my invention has been illustratedin the accompanying drawing, set forth in detail in the succeedingdescription, and defined in the claims appended hereto.

In said drawing:

Figure 1 is a View in side elevation of my improved hoist, in thepreferred embodiment thereof, with parts broken away andshown insection,

Figure 2 is a view in plan, partly in section,

Figure 3 is a view in vertical transverse section taken on the line 3-3of Figure 1 and drawn to an enlarged scale,

Figure 4 is a view in horizontal section taken on a line 44 of Figure 1and also drawn to an enlarged scale.

Reference being had to the drawing by numerals, my improved hoist, inthe illustrated embodiment thereof, comprises a V-shaped base Iincluding a pair of side bars 2 converging toan apex web 3 provided withan upstanding socket sleeve 4. Caster wheels 5 beneath the ends of theside bars 2, and beneath the apex web 3 support said base I.

A cylindrical post 6 arises from the socket sleeve 4 with the lower endthereof seated in and rotatable in said sleeve.

A cross head I is provided on the post 6 for vertical sliding adjustmentthereon and having the form of an offset T-fitting comprising a verticalsleeve 8 slidably fitted on said post, and a horizontal cross sleeve 9offset laterally to one side of the sleeve 8 and provided with a rearend counterbore ID for a purpose presently clear.

A U-clamp II is fitted on the post 6 beneath the sleeve 8 for verticalsliding adjustment on said post to support the cross head I in differentvertically adjusted positions.

A hand crank [2 extended through the clamp II and threaded into one sidethereof, as at I3, provides for tightenin the U-clamp II, at will.

A tubular crane arm I4 extends horizontally from the cross head 1 with arear end portion suitably fitted and fixed in the front end of thesleeve 9. The bore I5 of the crane arm I4 is of the same diameter as the'counterbore Ill of said sleeve '9. e A reel operating shaft I6 isrotatably extended through the .cranearm I 4 and the sleeve 9 with aworking'nt in the bore and the counterbore m and with its front endextending out of the front end of the crane arm I4 and its rear endextending out of the rear end of said sleeve 9.

A small diameter flanged reel I1 is suitably fixed on the front of thereel operating shaft I6 and retained on said shaft by a nut I8, saidreel having suitably fixed thereto for winding thereon a cable I9provided with a terminal hook 20.

A ratchet wheel 2| and a hand crank 22 are suitably fixed on the rearend of the reel operating shaft I6 and secured thereon by a nut 23, theratchet wheel 2| being confined against lateral displacement on saidshaft l6 between the rear end of the sleeve 9 and said hand crank 22.

A ratchet dog 24 is pivoted, as at 25 on the sleeve 8 to override theratchet wheel 2 I, the pivot 25 having the form of a bolt adapted to beturned against the post 6 to lock the cross head I to said post againstrotation independently of the post.

In using the described invention, the cross head I is first adjustedvertically on the post 6 to a height such that the crane arm l4 may beextended through the front door of an automobile, not shown, from whicha transmission is to be removed. In so adjusting the cross head 1, thepivot 25 is first suitably loosened so that said cross head may belifted on the post 6 to the desired position, after which the clamp I Imay be adjusted on said post 6, in a manner which will be clear, to holdthe cross head 'I in adjusted position. The base I is then wheeledbeneath the body of the automobile to extend the crane arm I4 throughthe front door until the reel I1 is in appropriate position for liftingthe transmission. With the crane arm I4 thus extended, said arm may beswung laterally to align the reel I I vertically with the transmission,the post 6 rotating in the socket sleeve 4 during such swinging of saidarm, it being understood that after adjustment of the cross head I, thepivot 25 is to be tightened to lock said cross head to the post 6. Theratchet dog 24 may then be lifted to disengage the ratchet wheel 2| sothat the cable I9 may be lowered to engage the hook 20 with a suitablepart of the transmission to be lifted. With the ratchet dog 24 droppedinto engagement with the ratchet wheel 2|, the hand crank 22 may then beoperated to cause, in a inanner which will be clear, the reel I! to windup the cable l9 and lift the transmission upwardly through the floor ofthe automobile and into a position such that by backing the hoist awayfrom the automobile, said transmission may be removed out of said door.Obviously, the ratchet dog 24 and ratchet wheel 2| will hold the reel l7against reverse rotation to maintain the cable l9 wound duringthisremoving operation. The transmission may be replaced by substantiallyreversing the operations described in the foregoing, as will beunderstood.

The foregoing will, it is believed, sufiice to impart a clearunderstanding of my invention, without further explanation.

Manifestly, the invention, as described, is susceptible of modificationWithout departing from the inventive concept, and right is hereinreserved to such modifications as fall within the scope of the appendedclaim.

What I claim is:

In a hoist of the class described, a wheel supported elongated base, apost at one end of said base having a lower end rotatably mounted on thesame, a cross head vertically slidable on said post into different setpositions, a clamp on said post vertically adjustable thereon to supportsaid cross head in the different set positions thereof, a crane armextending horizontally from said cross head, to overlie said base andhaving a rear end fixed in the cross head, a shaft rotatable in saidcross head and crane arm with a front end extending out of said arm anda rear end extending out of said cross head, a cable windin reel fast onthe front end of said shaft, an operating crank for said shaft fast onsaid rear end thereof, and dogging means for said shaft, including apivoted dog the pivot of which is adjustable to lock the cross head tothe post.

, NELS O. NELSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

